One vertex per element, one color per generator, with an edge from x to x·s.
(10,12)(14,16)(17,18)(19,22)(20,31)(21,23)(24,29)(25,28)(26,30)(27,32) involution — undirected(1,2)(3,6)(4,7)(5,8)(11,15)(14,16)(17,19,24,28)(18,25,29,22)(20,23,30,27)(21,31,32,26)(1,3)(2,5)(4,8)(6,7)(9,10,13,12)(11,14,15,16)(17,20)(18,26)(19,23)(21,25)(22,32)(24,30)(27,28)(29,31)(1,3)(2,6)(4,8)(5,7)(9,11)(10,14)(12,16)(13,15)(17,21,24,32)(18,27,29,23)(19,26,28,31)(20,25,30,22)(9,12,13,10)(11,16,15,14)(17,22,24,25)(18,28,29,19)(20,32,30,21)(23,26,27,31)(1,2)(3,5)(4,7)(6,8)(17,23,24,27)(18,21,29,32)(19,30,28,20)(22,26,25,31)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.